1312525545 has 16 divisors (see below), whose sum is σ = 2223573120. Its totient is φ = 658836224.

The previous prime is 1312525519. The next prime is 1312525561. The reversal of 1312525545 is 5455252131.

It is not a de Polignac number, because 1312525545 - 2¹⁴ = 1312509161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2573325 + ... + 2573834.

It is an arithmetic number, because the mean of its divisors is an integer number (138973320).

Almost surely, 2^1312525545 is an apocalyptic number.

1312525545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312525545 is a deficient number, since it is larger than the sum of its proper divisors (911047575).

1312525545 is a wasteful number, since it uses less digits than its factorization.

1312525545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147184.

The product of its digits is 30000, while the sum is 33.

The square root of 1312525545 is about 36228.7944182525. The cubic root of 1312525545 is about 1094.8868880888.

Adding to 1312525545 its reverse (5455252131), we get a palindrome (6767777676).

The spelling of 1312525545 in words is "one billion, three hundred twelve million, five hundred twenty-five thousand, five hundred forty-five".